Juraldinio
121 lines
3.7 KiB
Swift
121 lines
3.7 KiB
Swift
//
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// WalletTextInputView.swift
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// Malinka
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//
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// Created by Nut.Tech on 27.07.2022.
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//
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import UIKit
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protocol WalletTextInputViewDelegate: AnyObject {
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func walletUpdateTextOutput(wallet: WalletTextInputView, text: String?)
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}
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final class WalletTextInputView: UIStackView {
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private enum Constants {
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static let spacing: CGFloat = 4
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static let textCellCornerRadius: CGFloat = 3
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static let borderWidth: CGFloat = 1
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static let size: CGFloat = 20
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static let fontSize: CGFloat = 16
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}
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// MARK: - Properties
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private let length: Int
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private weak var delegate: WalletTextInputViewDelegate?
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private var lettersContainers: [UITextField]
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// MARK: - Init
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init(length: Int, delegate: WalletTextInputViewDelegate) {
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self.length = length
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self.lettersContainers = []
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super.init(frame: .zero)
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self.axis = .horizontal
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self.spacing = Constants.spacing
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self.alignment = .leading
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self.distribution = .fillEqually
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for i in 0..<length {
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let textfield = self.createTextCell()
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textfield.delegate = self
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textfield.tag = i
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self.lettersContainers.append(textfield)
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self.addArrangedSubview(textfield)
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}
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self.delegate = delegate
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}
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required init(coder: NSCoder) {
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fatalError("init(coder:) has not been implemented")
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}
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// MARK: - Methods
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func hideKeyboard() {
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self.lettersContainers.forEach {
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$0.resignFirstResponder()
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}
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}
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// MARK: - Private
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private func createTextCell() -> UITextField {
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let textField = UITextField()
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textField.layer.cornerRadius = Constants.textCellCornerRadius
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textField.clipsToBounds = true
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textField.layer.borderColor = Asset.deepWater.color.cgColor
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textField.layer.borderWidth = Constants.borderWidth
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textField.font = FontFamily.GolosUI.bold.font(size: Constants.fontSize)
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textField.textColor = Asset.dark.color
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textField.textAlignment = .center
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NSLayoutConstraint.activate([
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textField.heightAnchor.constraint(equalToConstant: Constants.size),
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textField.widthAnchor.constraint(equalToConstant: Constants.size)
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])
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return textField
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}
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private func checkIfAllSymbolsEntered() {
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let string = self.lettersContainers
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.compactMap { $0.text }
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.reduce("", +)
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self.delegate?.walletUpdateTextOutput(wallet: self, text: string.count == self.length ? string : nil)
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}
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}
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// MARK: - UITextFieldDelegate
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extension WalletTextInputView: UITextFieldDelegate {
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func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
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guard string.matched(.accountName) || string.isEmpty else { return false }
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let newString = (textField.text ?? "").replacingCharacters(in: range, with: string).lowercased()
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if newString.count > 1 {
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let cutted = newString.dropLast()
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textField.text = String(cutted)
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if let field = self.lettersContainers[safe: textField.tag + 1] {
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field.text = string
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field.becomeFirstResponder()
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}
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return false
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}
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if string.isEmpty {
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textField.text = string
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if let field = self.lettersContainers[safe: textField.tag - 1] {
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field.becomeFirstResponder()
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}
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return false
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}
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return true
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}
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func textFieldDidEndEditing(_ textField: UITextField) {
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self.checkIfAllSymbolsEntered()
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}
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}
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